Test 16b Review

Define Pressure - Know the units

The force per unit area.

Units; N/cm^2

SI Units; Pa

Define Force and it’s units

The push or pull on an object.

Units; N

The Acceleration of Gravity - and the units

The change is velocity per unit time of an object in freefall.

Units; m/s^2

Define Area and it’s units

The 2-dimensional space an object occupies.

Units; m^2

Define Density and it’s units

Mass per unit volume of an object

Units; g/cm^3

Boyles Law + Example

Volume goes down, the pressure goes up and Volume goes up pressure goes down.

Example; Taking styrofoam cups to the bottom of the ocean

Charles Law + Example

Temperature goes up, volume also goes up and Temperature goes down and volume dose the same.

Example; A hot air balloon

Pascal’s Principle

If a force is applied to a confined fluid, an increase in pressure is distributed evenly throughout the fluid.

Archimedes Principle

The buoyancy force on an object = the weight of the fluid displaced.

Bernoullis Principle

The pressure of a fast moving stream of fluid is less than that of the surrounding fluid.